Cocoa-cooler.



1?t s.. HGLLSTEIN 0000A OOULER. APPLXGATIGN FILED P11119. 1am.

latented June 24,1913.

3 SHEETS-S HEET l.

Si vwo nto@ K j. M@ @2m @Sito o P. G. HOLLS'I'EIN'.

COCOA COOLER.

`APPLIMAIOE PILED P13519, 1913.

Patented June 24, 1913.

3 SEEETSHSHEET 2.

HIER..

EB P2319, 191s.

Patented June 24, 1913.

wuenfofc l UNITED STATES PATENT oFFioE..

PAUL G. HOLLSTEIN, F CARLSTADT, NEW JERSEY,'ASSIGNOR TO J. M. LEhH-.MANN COMPANY, OF NEW YORK, N. Y., A CORPORATION.

COCOA-COOLER.

Specication tif-Letters Patent.

Patented June 24, 1913.

Application led February 19, 1913. Serial No. 749,330. i I

ter has been heated to a Vcomparatively high degree for the purpose of imparting thereto a desirable dark color. Because of the fact l5, that the cocoa beans are subjected to various operations, 4such as grinding, cleaning, eX- tracting the cocoa oil, ctc.` the resulting pt wder is of an objectionable 'lightcolorz To impart to this cocoa powder the` desir.

30 able dark color, it is ,heated to a considerable extent, whereupon it is again 'gradu- .1 ally cooled off without however being subi jected to mechanical attacks, such as'grinding, pressing, etc., while anyl lumps formed are. nevertheless broken up.

' In the accompanying drawing: Figure l is a side view partly in section of 'a cocoa cooler embodying my invention; Fig. 2 an enlarged vertical section through part of the conveyer run; Fig. 3 a detail bottom View of part of the conveyer proper; Fig. 4 a front view of the cocoa spreader and connected parts; Fig. 5a cross sect-ion through the conveyer-supporting means on line 5--5 Fig. l; Fig. 6 anend view partly in section of Vthe incased coolerand the air circulating means, and Fig. 7 a top view of Fig. 6.

Briefly stated, my improved cocoa cooler comprisesv essentially an endless conveyer which is so conducted as to form a multitudeI of horizontal zig-zag runs A arranged above one another, provision being made for automatically droppingr the`cocoa from each run near the end thereof upon the run next bclow. In this way, the hot cocoa is repeatedly carried back and forthwhile gradually dc7 -scending within the apparatus until dis-` charged from the lowermost run, during which operation it is subjected to the action of a cooling air current, as hereinafter more fully described.

For .supporting the conveycr, two pairs of uprights l0, 11 are provided, the uprights of each pair beingl connected by suitable tic '55 rods 12. UprightsI 1() and ll axe furnished with a'plurality of bearings 13 within which of uprights l0 breaking line with those of uprights 11 as clearly illustrated in Fig. 1. In close proximity to the uprights, each shaft 14' is provided wthfrelatively fixed sprocket wheels 15 adapted for the support of endless chains 16.

ally extending bearings 17 supporting shafts to uprights 10 for supporting a. shaft 21 and with inwardly tively', of whic ots for the conveyer blades( or a'ps 2 5. The latter are of such'fa-lengtl't as to slightly overlap each other,- tlis constitutinga moving platform during the horizontal zi -zaLg runs of the conveyer"(F ig. 2). In o er to prevent an objectionable sagging of the conveyer, chainsl are suppo'ted at their hori- 26 that are secured to posts l0 and 11 by rivets -or otherwise. Tofblades 25 are secured near the ends thereof, apairof arms said arms being of a length to engage the pins 24 of those chain links that are located intermediate the pins supporting the convever blades.

and 2), each blade 25 rests upon the ad]oinplied to the top run near the right end thereof through a suitable feed hopper 28. In orf der to uniformly distribute the cocoa across the entire width ofthe conveyer, a Wedge shaped spreader 2) is arranged a slight. distance above blades 25 (Figs. 3 and '4). This spreader is shown to be secured by hangers 30 to a lcross`frame 31 which is in turn attached to the top rails 26. After the heated cocoa thus supplied to and evenly distributed upon the conveyer-blades has nearly reached the left end of the topvrun, blades 25 are swung upward, so that the cocoa will drop l upon the conveyer run next below (Fig. 2). f For effecting this tilting movement of the blades. short cams 32 are secured to inwardly extending brackets 33 of the top rails 26.

In addition t0 the above bearings 13, uprights 1 1 have later-l sprocket wheels 22. Thealternat-ing links of chains 16 are provided tat their middle.

projecting pins 23, 24 respec'-' r-'the pins 23 constitute piv- 'zontal'runs upon'longitudinalguide rails 27 extending at right angles to said blades During the runs toward the left (Figs. 1

ing blade, the cocoa, to be cooled being suptransverse shafts 14 are journaled, the shafts 18 to which sprocket wheels 19 are secured that are 'also engaged by chains `16. In 'order to tighten the latter upfrom time to'tim, laterally adjustable bearings 20 are secured i These rails are arranged in the path of the l arms 27 of the conveyer blades and cause the desired temporary tilting of the latter, while Vrun belowthat travels in the opposite direci at. the same time the pins 24 by engaging said arms, will prevent an accidental overl throw of blades 25.' Exteriirly tothe left sprocket Wheels 15, curved guards 34 arci provided that areengaged--by the conveyer .i blades and assist in preventingl any undei sired disarrangement of the same. In order l to maintain the blades in their substantially horizontal position while traveling g from the left `towardthe right (Figs. 1 and 2) supporting rails 35 are provided upon which the blades ride during such movei ment. p Rails 35 are preferably made integral with rguards 34 and are supported by traverses A36X securedY ttorails" .26.` As l Clearly illustrated in 'Fi,g`.j2, rails 35 ter-f minate at a distance from the right hand sprocket wheels 15, sothat 'the blades will lose their supportand swing down by their own Weight todischarge the` cocoa upon the tion.v the operation described being repeated for the'remainder 'ofthe runs. Fronthe bottoni run, thecocoa is finally discharged through a tapering chute 37 into a trough 38 from which it is removed by a. suitable screw conveyer 39 to be fedto the place of further treatment.

Power may be sup lied to the conveyer described in any suitable manner, the drawing showing one of the shafts 14 provided with a pulley 540 which is by belt 4l connected to apulley 42 of a counter shaft. 43. g The latter carries fast'andjloose pulleys 44, 45 which area'd'apted to be engaged by a driving beltr'46.

1- sima Q In, order; to increase the cooling effectuot the device,eo1d 'air is eontin'uol'isly'Iv blown therethrough, for whiclrpurpose the coolerj is incased as at 47. The cold air is supplied i' from a suitable blower (not shown) to'a feed .pipe 4S`Wnich' is Shown to'terminate in three flaring mouth pieces 49 in chute 37. After the air hasqrisen through the lcooler, it is dischargedvthrough suitable l chanical Au'rindinfpg' or other objectionable 0p-v crations. vOwing to the drop of the cocoa from run to run', all lumps will be effectively broken up. so that a finelyA divided powder j' ot the` desired dark color will result.

l claim:

l. ln a coc-oa cooler. a pair of endless chains having' a plurality ot zig-zag runs, conveyor blades pivotally suspended between said chains, arms on said blades, .supporting rails adapted to be engaged by the blades, and earns adapted to be engaged by the arms.

2. ln a cocoa cooler, a pair of endless chains' havingl a plurality of zig-zag runs, axially alined pins projecting inwardly from the ehains,`conveyer blades turnable on said pins. arms on said bladessupporting 'rails adapted to he engaged by the blades, and cams adapted to be engaged by the arms.

ln a cocoa cooler. a pair of endless chains having a plurality of Azigzag runs, axiall)v alined pins projecting inwardlyfrom the chains, conveyor blades turnable on alternating sets of said pins, arms on said blades that are adaptedto engage the inter; mediate pins, supporting rails adapted to be engaged by the bla-des, and cams adapted to be engaged by thearms.

4. ln a cocoa cooler, a* pair of endless chains having a plurality/'of zig-zag runs7 horizontal guide rails adapted to be engaged by said chains, conveyer blades Vpivotally suspended between said chains, arms on said blades. supportingrails adapted to be engaged by said blades formalntaining them' in' a ysubstant'ially horizontalposition, and cams adapted to be engaged-by' the bladearms, y

Witnesses:

ARTHUR E. ZUMPE, KATHERYNE KOCH.-

PAUL o. HoLLs'rEni. 

